pyrrhotite
- noun
- /ˈpɪrəˌhoʊtaɪt/
- Specialized
- The mineral pyrrhotite is often found in igneous rocks and can be identified by its brownish color.
Examples
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Geologists study pyrrhotite for its unique magnetic properties and its role in rock formation.
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It could be a mineral like pyrite, magnetite, or pyrrhotite—a more complex iron sulfide than pyrite—any of which would be very radar-reflective.
Academic text (1991) -
The mineral pyrrhotite is characterized by its weak magnetic qualities and composition of iron sulfide.
Synonyms
A brown mineral made of iron and sulfur with weak magnetism in rocks
A brown mineral made of iron that is slightly magnetic
How Magnetic
Surface Forms
Morphology
pyrrhotite = pyrrhot + ite
The element 'pyrrhot-' is a Greek combining form (not a standalone English word) and is not productive for ordinary learners; while '-ite' signals a mineral, the overall meaning cannot be derived by a B1 learner from the parts.
Etymology
Pyrrhotite comes from the Greek root pyrrhos, meaning 'flame-coloured' or 'reddish', and the mineral ending -ite which names rocks and minerals. So pyrrhotite is a brownish, sometimes weakly magnetic mineral, and the name helps you remember its warm, rusty colour and that it is a mineral.